There’s rapid-fire chat and blink-of-an-eye character switches during the stage show that’s been garnering high praise.

But on a more serious note, he confides he needs to stay off his ADHD medication to keep on top of his stage show.

But admits he will have to take it again as he continues to deal with his recently-diagnosed condition.

He only found out about it during tests for a new TV documentary on ADHD due to be screened in a couple of months.

Getting the news, he admits, “wasn’t my happiest 24 hours” and says pills and political satire just don’t mix.

“I took medication for the programme but when you’re on stage then adrenaline kicks in,” explains Rory, whose career has seen him pick up BAFTAs as well as Royal Television Society and British Comedy Award gongs.

“You’re juggling four or five balls in the air, but the Ritalin medication makes you concentrate on just one or two things at a time.

“That slows you down on stage but I still have the medication and I will take it again when I’m preparing for things.

“It’s quite sophisticated these days and you can just dial it up and down as you need it.

“It passes through the system in a matter of hours. I know people who are on it and they are very much in control.”

Rory admits ADHD can actually prove to be a blessing, not a curse, for a comic and impressionist.

“I had always suspected that I had it,” he confides. “Mine is mild and I’ve learned how to manage it and turn it to my advantage.

“I’m in a job where it’s an asset. It’s one where being uninhibited and having your brain shoot off at tangents is not a bad thing.

“During the diagnosis period, where you’re admitting to the many failings of managing your life and taking responsibility, I found ADHD really owned me.

“Usually, though I manage to run the show.”

For many others, however, Rory is aware that it’s constantly deeply difficult and troubling.

“Families with someone with ADHD live in a world of frustration and despair.

“It’s very easy for children to be excluded and misunderstood and written off.

“They need help, because ADHD is under-diagnosed.

“Our documentary shows scans of the brain of a typical nine-year-old which is naturally developing.

“But when you look at the brain of a nine-year-old with ADHD, half the pieces are missing. It’s as if they haven’t turned up.

“It’s heartbreaking that you have that scientific proof yet people still talk about naughty children and bad parents.”